Comparison of color index and class of spectrum
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Author
Publication
1917 - The Observatory, Cambridge, Mass, Massachusetts
Language
English
Word Count
0 words, Guess
Page Count
0 pages
Identifiers
- OCLC Control Number27285397
- Open LibraryOL53454374M
Subjects
Topics
Series Statement
- Annals of Harvard college observatory -- v. 80, no. 9
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